X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fmmc%2Fmmc.c;h=02494db75a7d796a7779769b3a1ed14998f8c044;hb=c05ed00afb95fa5237f16962fccf5810437317bf;hp=d8581271321228d0634cdec5e5df31ffcc922a6c;hpb=e5aa3f4d97b11271c3a2407e272a131b7e975c61;p=oweals%2Fu-boot.git diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d858127132..02494db75a 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -8,12 +8,15 @@ #include #include +#include #include #include +#include #include #include #include #include +#include #include #include #include @@ -21,20 +24,16 @@ #include #include "mmc_private.h" +#define DEFAULT_CMD6_TIMEOUT_MS 500 + static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); -static int mmc_power_cycle(struct mmc *mmc); -#if !CONFIG_IS_ENABLED(MMC_TINY) -static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps); -#endif #if !CONFIG_IS_ENABLED(DM_MMC) -#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) -static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout) +static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us) { return -ENOSYS; } -#endif __weak int board_mmc_getwp(struct mmc *mmc) { @@ -67,7 +66,7 @@ __weak int board_mmc_getcd(struct mmc *mmc) void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd) { printf("CMD_SEND:%d\n", cmd->cmdidx); - printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg); + printf("\t\tARG\t\t\t 0x%08x\n", cmd->cmdarg); } void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret) @@ -83,21 +82,21 @@ void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret) printf("\t\tMMC_RSP_NONE\n"); break; case MMC_RSP_R1: - printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n", + printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08x \n", cmd->response[0]); break; case MMC_RSP_R1b: - printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n", + printf("\t\tMMC_RSP_R1b\t\t 0x%08x \n", cmd->response[0]); break; case MMC_RSP_R2: - printf("\t\tMMC_RSP_R2\t\t 0x%08X \n", + printf("\t\tMMC_RSP_R2\t\t 0x%08x \n", cmd->response[0]); - printf("\t\t \t\t 0x%08X \n", + printf("\t\t \t\t 0x%08x \n", cmd->response[1]); - printf("\t\t \t\t 0x%08X \n", + printf("\t\t \t\t 0x%08x \n", cmd->response[2]); - printf("\t\t \t\t 0x%08X \n", + printf("\t\t \t\t 0x%08x \n", cmd->response[3]); printf("\n"); printf("\t\t\t\t\tDUMPING DATA\n"); @@ -107,12 +106,12 @@ void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret) ptr = (u8 *)&cmd->response[i]; ptr += 3; for (j = 0; j < 4; j++) - printf("%02X ", *ptr--); + printf("%02x ", *ptr--); printf("\n"); } break; case MMC_RSP_R3: - printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n", + printf("\t\tMMC_RSP_R3,4\t\t 0x%08x \n", cmd->response[0]); break; default: @@ -136,7 +135,6 @@ const char *mmc_mode_name(enum bus_mode mode) { static const char *const names[] = { [MMC_LEGACY] = "MMC legacy", - [SD_LEGACY] = "SD Legacy", [MMC_HS] = "MMC High Speed (26MHz)", [SD_HS] = "SD High Speed (50MHz)", [UHS_SDR12] = "UHS SDR12 (25MHz)", @@ -148,6 +146,7 @@ const char *mmc_mode_name(enum bus_mode mode) [MMC_DDR_52] = "MMC DDR52 (52MHz)", [MMC_HS_200] = "HS200 (200MHz)", [MMC_HS_400] = "HS400 (200MHz)", + [MMC_HS_400_ES] = "HS400ES (200MHz)", }; if (mode >= MMC_MODES_END) @@ -161,7 +160,6 @@ static uint mmc_mode2freq(struct mmc *mmc, enum bus_mode mode) { static const int freqs[] = { [MMC_LEGACY] = 25000000, - [SD_LEGACY] = 25000000, [MMC_HS] = 26000000, [SD_HS] = 50000000, [MMC_HS_52] = 52000000, @@ -173,6 +171,7 @@ static uint mmc_mode2freq(struct mmc *mmc, enum bus_mode mode) [UHS_SDR104] = 208000000, [MMC_HS_200] = 200000000, [MMC_HS_400] = 200000000, + [MMC_HS_400_ES] = 200000000, }; if (mode == MMC_LEGACY) @@ -206,7 +205,7 @@ int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) } #endif -int mmc_send_status(struct mmc *mmc, int timeout) +int mmc_send_status(struct mmc *mmc, unsigned int *status) { struct mmc_cmd cmd; int err, retries = 5; @@ -216,32 +215,51 @@ int mmc_send_status(struct mmc *mmc, int timeout) if (!mmc_host_is_spi(mmc)) cmd.cmdarg = mmc->rca << 16; - while (1) { + while (retries--) { err = mmc_send_cmd(mmc, &cmd, NULL); if (!err) { - if ((cmd.response[0] & MMC_STATUS_RDY_FOR_DATA) && - (cmd.response[0] & MMC_STATUS_CURR_STATE) != - MMC_STATE_PRG) - break; + mmc_trace_state(mmc, &cmd); + *status = cmd.response[0]; + return 0; + } + } + mmc_trace_state(mmc, &cmd); + return -ECOMM; +} + +int mmc_poll_for_busy(struct mmc *mmc, int timeout_ms) +{ + unsigned int status; + int err; + + err = mmc_wait_dat0(mmc, 1, timeout_ms * 1000); + if (err != -ENOSYS) + return err; - if (cmd.response[0] & MMC_STATUS_MASK) { + while (1) { + err = mmc_send_status(mmc, &status); + if (err) + return err; + + if ((status & MMC_STATUS_RDY_FOR_DATA) && + (status & MMC_STATUS_CURR_STATE) != + MMC_STATE_PRG) + break; + + if (status & MMC_STATUS_MASK) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) - pr_err("Status Error: 0x%08X\n", - cmd.response[0]); + pr_err("Status Error: 0x%08x\n", status); #endif - return -ECOMM; - } - } else if (--retries < 0) - return err; + return -ECOMM; + } - if (timeout-- <= 0) + if (timeout_ms-- <= 0) break; udelay(1000); } - mmc_trace_state(mmc, &cmd); - if (timeout <= 0) { + if (timeout_ms <= 0) { #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) pr_err("Timeout waiting card ready\n"); #endif @@ -394,6 +412,16 @@ static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start, return blkcnt; } +#if !CONFIG_IS_ENABLED(DM_MMC) +static int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt) +{ + if (mmc->cfg->ops->get_b_max) + return mmc->cfg->ops->get_b_max(mmc, dst, blkcnt); + else + return mmc->cfg->b_max; +} +#endif + #if CONFIG_IS_ENABLED(BLK) ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *dst) #else @@ -407,6 +435,7 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, int dev_num = block_dev->devnum; int err; lbaint_t cur, blocks_todo = blkcnt; + uint b_max; if (blkcnt == 0) return 0; @@ -436,9 +465,10 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, return 0; } + b_max = mmc_get_b_max(mmc, dst, blkcnt); + do { - cur = (blocks_todo > mmc->cfg->b_max) ? - mmc->cfg->b_max : blocks_todo; + cur = (blocks_todo > b_max) ? b_max : blocks_todo; if (mmc_read_blocks(mmc, dst, start, cur) != cur) { pr_debug("%s: Failed to read blocks\n", __func__); return 0; @@ -703,7 +733,7 @@ static int mmc_complete_op_cond(struct mmc *mmc) } -static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) +int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) { struct mmc_cmd cmd; struct mmc_data data; @@ -724,37 +754,85 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) return err; } -int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) +static int __mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value, + bool send_status) { + unsigned int status, start; struct mmc_cmd cmd; - int timeout = 1000; + int timeout_ms = DEFAULT_CMD6_TIMEOUT_MS; + bool is_part_switch = (set == EXT_CSD_CMD_SET_NORMAL) && + (index == EXT_CSD_PART_CONF); int retries = 3; int ret; + if (mmc->gen_cmd6_time) + timeout_ms = mmc->gen_cmd6_time * 10; + + if (is_part_switch && mmc->part_switch_time) + timeout_ms = mmc->part_switch_time * 10; + cmd.cmdidx = MMC_CMD_SWITCH; cmd.resp_type = MMC_RSP_R1b; cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | (index << 16) | (value << 8); - while (retries > 0) { + do { ret = mmc_send_cmd(mmc, &cmd, NULL); + } while (ret && retries-- > 0); - /* Waiting for the ready status */ - if (!ret) { - ret = mmc_send_status(mmc, timeout); - return ret; + if (ret) + return ret; + + start = get_timer(0); + + /* poll dat0 for rdy/buys status */ + ret = mmc_wait_dat0(mmc, 1, timeout_ms * 1000); + if (ret && ret != -ENOSYS) + return ret; + + /* + * In cases when not allowed to poll by using CMD13 or because we aren't + * capable of polling by using mmc_wait_dat0, then rely on waiting the + * stated timeout to be sufficient. + */ + if (ret == -ENOSYS && !send_status) + mdelay(timeout_ms); + + /* Finally wait until the card is ready or indicates a failure + * to switch. It doesn't hurt to use CMD13 here even if send_status + * is false, because by now (after 'timeout_ms' ms) the bus should be + * reliable. + */ + do { + ret = mmc_send_status(mmc, &status); + + if (!ret && (status & MMC_STATUS_SWITCH_ERROR)) { + pr_debug("switch failed %d/%d/0x%x !\n", set, index, + value); + return -EIO; } + if (!ret && (status & MMC_STATUS_RDY_FOR_DATA)) + return 0; + udelay(100); + } while (get_timer(start) < timeout_ms); - retries--; - } + return -ETIMEDOUT; +} - return ret; +int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) +{ + return __mmc_switch(mmc, set, index, value, true); +} +int mmc_boot_wp(struct mmc *mmc) +{ + return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP, 1); } #if !CONFIG_IS_ENABLED(MMC_TINY) -static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode) +static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode, + bool hsdowngrade) { int err; int speed_bits; @@ -776,6 +854,11 @@ static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode) case MMC_HS_400: speed_bits = EXT_CSD_TIMING_HS400; break; +#endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + case MMC_HS_400_ES: + speed_bits = EXT_CSD_TIMING_HS400; + break; #endif case MMC_LEGACY: speed_bits = EXT_CSD_TIMING_LEGACY; @@ -783,11 +866,26 @@ static int mmc_set_card_speed(struct mmc *mmc, enum bus_mode mode) default: return -EINVAL; } - err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, - speed_bits); + + err = __mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, + speed_bits, !hsdowngrade); if (err) return err; +#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) + /* + * In case the eMMC is in HS200/HS400 mode and we are downgrading + * to HS mode, the card clock are still running much faster than + * the supported HS mode clock, so we can not reliably read out + * Extended CSD. Reconfigure the controller to run at HS mode. + */ + if (hsdowngrade) { + mmc_select_mode(mmc, MMC_HS); + mmc_set_clock(mmc, mmc_mode2freq(mmc, MMC_HS), false); + } +#endif + if ((mode == MMC_HS) || (mode == MMC_HS_52)) { /* Now check to see that it worked */ err = mmc_send_ext_csd(mmc, test_csd); @@ -832,7 +930,8 @@ static int mmc_get_capabilities(struct mmc *mmc) mmc->card_caps |= MMC_MODE_HS200; } #endif -#if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) +#if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) if (cardtype & (EXT_CSD_CARD_TYPE_HS400_1_2V | EXT_CSD_CARD_TYPE_HS400_1_8V)) { mmc->card_caps |= MMC_MODE_HS400; @@ -846,6 +945,13 @@ static int mmc_get_capabilities(struct mmc *mmc) if (cardtype & EXT_CSD_CARD_TYPE_26) mmc->card_caps |= MMC_MODE_HS; +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + if (ext_csd[EXT_CSD_STROBE_SUPPORT] && + (mmc->card_caps & MMC_MODE_HS400)) { + mmc->card_caps |= MMC_MODE_HS400_ES; + } +#endif + return 0; } #endif @@ -878,49 +984,17 @@ static int mmc_set_capacity(struct mmc *mmc, int part_num) return 0; } -#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) -static int mmc_boot_part_access_chk(struct mmc *mmc, unsigned int part_num) -{ - int forbidden = 0; - bool change = false; - - if (part_num & PART_ACCESS_MASK) - forbidden = MMC_CAP(MMC_HS_200); - - if (MMC_CAP(mmc->selected_mode) & forbidden) { - pr_debug("selected mode (%s) is forbidden for part %d\n", - mmc_mode_name(mmc->selected_mode), part_num); - change = true; - } else if (mmc->selected_mode != mmc->best_mode) { - pr_debug("selected mode is not optimal\n"); - change = true; - } - - if (change) - return mmc_select_mode_and_width(mmc, - mmc->card_caps & ~forbidden); - - return 0; -} -#else -static inline int mmc_boot_part_access_chk(struct mmc *mmc, - unsigned int part_num) -{ - return 0; -} -#endif - int mmc_switch_part(struct mmc *mmc, unsigned int part_num) { int ret; + int retry = 3; - ret = mmc_boot_part_access_chk(mmc, part_num); - if (ret) - return ret; - - ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF, - (mmc->part_config & ~PART_ACCESS_MASK) - | (part_num & PART_ACCESS_MASK)); + do { + ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_PART_CONF, + (mmc->part_config & ~PART_ACCESS_MASK) + | (part_num & PART_ACCESS_MASK)); + } while (ret && retry--); /* * Set the capacity if the switch succeeded or was intended @@ -1066,9 +1140,11 @@ int mmc_hwpart_config(struct mmc *mmc, ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1; +#if CONFIG_IS_ENABLED(MMC_WRITE) /* update erase group size to be high-capacity */ mmc->erase_grp_size = ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024; +#endif } @@ -1181,7 +1257,7 @@ static int sd_get_capabilities(struct mmc *mmc) u32 sd3_bus_mode; #endif - mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(SD_LEGACY); + mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(MMC_LEGACY); if (mmc_host_is_spi(mmc)) return 0; @@ -1294,7 +1370,7 @@ static int sd_set_card_speed(struct mmc *mmc, enum bus_mode mode) return 0; switch (mode) { - case SD_LEGACY: + case MMC_LEGACY: speed = UHS_SDR12_BUS_SPEED; break; case SD_HS: @@ -1384,6 +1460,20 @@ static int sd_read_ssr(struct mmc *mmc) cmd.cmdarg = mmc->rca << 16; err = mmc_send_cmd(mmc, &cmd, NULL); +#ifdef CONFIG_MMC_QUIRKS + if (err && (mmc->quirks & MMC_QUIRK_RETRY_APP_CMD)) { + int retries = 4; + /* + * It has been seen that APP_CMD may fail on the first + * attempt, let's try a few more times + */ + do { + err = mmc_send_cmd(mmc, &cmd, NULL); + if (!err) + break; + } while (retries--); + } +#endif if (err) return err; @@ -1477,10 +1567,6 @@ static int mmc_execute_tuning(struct mmc *mmc, uint opcode) } #endif -static void mmc_send_init_stream(struct mmc *mmc) -{ -} - static int mmc_set_ios(struct mmc *mmc) { int ret = 0; @@ -1490,6 +1576,16 @@ static int mmc_set_ios(struct mmc *mmc) return ret; } + +static int mmc_host_power_cycle(struct mmc *mmc) +{ + int ret = 0; + + if (mmc->cfg->ops->host_power_cycle) + ret = mmc->cfg->ops->host_power_cycle(mmc); + + return ret; +} #endif int mmc_set_clock(struct mmc *mmc, uint clock, bool disable) @@ -1617,7 +1713,7 @@ static const struct mode_width_tuning sd_modes_by_pref[] = { }, #endif { - .mode = SD_LEGACY, + .mode = MMC_LEGACY, .widths = MMC_MODE_4BIT | MMC_MODE_1BIT, } }; @@ -1645,6 +1741,13 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_dump_capabilities("host", mmc->host_caps); #endif + if (mmc_host_is_spi(mmc)) { + mmc_set_bus_width(mmc, 1); + mmc_select_mode(mmc, MMC_LEGACY); + mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); + return 0; + } + /* Restrict card's capabilities by what the host can do */ caps = card_caps & mmc->host_caps; @@ -1699,7 +1802,7 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) error: /* revert to a safer bus speed */ - mmc_select_mode(mmc, SD_LEGACY); + mmc_select_mode(mmc, MMC_LEGACY); mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); } @@ -1751,6 +1854,7 @@ static int mmc_set_lowest_voltage(struct mmc *mmc, enum bus_mode mode, u32 card_mask = 0; switch (mode) { + case MMC_HS_400_ES: case MMC_HS_400: case MMC_HS_200: if (mmc->cardtype & (EXT_CSD_CARD_TYPE_HS200_1_8V | @@ -1793,6 +1897,12 @@ static inline int mmc_set_lowest_voltage(struct mmc *mmc, enum bus_mode mode, #endif static const struct mode_width_tuning mmc_modes_by_pref[] = { +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + { + .mode = MMC_HS_400_ES, + .widths = MMC_MODE_8BIT, + }, +#endif #if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) { .mode = MMC_HS_400, @@ -1849,7 +1959,7 @@ static int mmc_select_hs400(struct mmc *mmc) int err; /* Set timing to HS200 for tuning */ - err = mmc_set_card_speed(mmc, MMC_HS_200); + err = mmc_set_card_speed(mmc, MMC_HS_200, false); if (err) return err; @@ -1865,15 +1975,14 @@ static int mmc_select_hs400(struct mmc *mmc) } /* Set back to HS */ - mmc_set_card_speed(mmc, MMC_HS); - mmc_set_clock(mmc, mmc_mode2freq(mmc, MMC_HS), false); + mmc_set_card_speed(mmc, MMC_HS, true); err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_FLAG); if (err) return err; - err = mmc_set_card_speed(mmc, MMC_HS_400); + err = mmc_set_card_speed(mmc, MMC_HS_400, false); if (err) return err; @@ -1891,6 +2000,47 @@ static int mmc_select_hs400(struct mmc *mmc) } #endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) +#if !CONFIG_IS_ENABLED(DM_MMC) +static int mmc_set_enhanced_strobe(struct mmc *mmc) +{ + return -ENOTSUPP; +} +#endif +static int mmc_select_hs400es(struct mmc *mmc) +{ + int err; + + err = mmc_set_card_speed(mmc, MMC_HS, true); + if (err) + return err; + + err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, + EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_FLAG | + EXT_CSD_BUS_WIDTH_STROBE); + if (err) { + printf("switch to bus width for hs400 failed\n"); + return err; + } + /* TODO: driver strength */ + err = mmc_set_card_speed(mmc, MMC_HS_400_ES, false); + if (err) + return err; + + mmc_select_mode(mmc, MMC_HS_400_ES); + err = mmc_set_clock(mmc, mmc->tran_speed, false); + if (err) + return err; + + return mmc_set_enhanced_strobe(mmc); +} +#else +static int mmc_select_hs400es(struct mmc *mmc) +{ + return -ENOTSUPP; +} +#endif + #define for_each_supported_width(caps, ddr, ecbv) \ for (ecbv = ext_csd_bus_width;\ ecbv < ext_csd_bus_width + ARRAY_SIZE(ext_csd_bus_width);\ @@ -1908,6 +2058,13 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_dump_capabilities("host", mmc->host_caps); #endif + if (mmc_host_is_spi(mmc)) { + mmc_set_bus_width(mmc, 1); + mmc_select_mode(mmc, MMC_LEGACY); + mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); + return 0; + } + /* Restrict card's capabilities by what the host can do */ card_caps &= mmc->host_caps; @@ -1920,7 +2077,19 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) return -ENOTSUPP; } - mmc_set_clock(mmc, mmc->legacy_speed, MMC_CLK_ENABLE); +#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) + /* + * In case the eMMC is in HS200/HS400 mode, downgrade to HS mode + * before doing anything else, since a transition from either of + * the HS200/HS400 mode directly to legacy mode is not supported. + */ + if (mmc->selected_mode == MMC_HS_200 || + mmc->selected_mode == MMC_HS_400) + mmc_set_card_speed(mmc, MMC_HS, true); + else +#endif + mmc_set_clock(mmc, mmc->legacy_speed, MMC_CLK_ENABLE); for_each_mmc_mode_by_pref(card_caps, mwt) { for_each_supported_width(card_caps & mwt->widths, @@ -1950,9 +2119,16 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) printf("Select HS400 failed %d\n", err); goto error; } + } else if (mwt->mode == MMC_HS_400_ES) { + err = mmc_select_hs400es(mmc); + if (err) { + printf("Select HS400ES failed %d\n", + err); + goto error; + } } else { /* configure the bus speed (card) */ - err = mmc_set_card_speed(mmc, mwt->mode); + err = mmc_set_card_speed(mmc, mwt->mode, false); if (err) goto error; @@ -2084,6 +2260,9 @@ static int mmc_startup_v4(struct mmc *mmc) mmc->capacity_user = capacity; } + if (mmc->version >= MMC_VERSION_4_5) + mmc->gen_cmd6_time = ext_csd[EXT_CSD_GENERIC_CMD6_TIME]; + /* The partition data may be non-zero but it is only * effective if PARTITION_SETTING_COMPLETED is set in * EXT_CSD, so ignore any data if this bit is not set, @@ -2093,6 +2272,11 @@ static int mmc_startup_v4(struct mmc *mmc) part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] & EXT_CSD_PARTITION_SETTING_COMPLETED); + mmc->part_switch_time = ext_csd[EXT_CSD_PART_SWITCH_TIME]; + /* Some eMMC set the value too low so set a minimum */ + if (mmc->part_switch_time < MMC_MIN_PART_SWITCH_TIME && mmc->part_switch_time) + mmc->part_switch_time = MMC_MIN_PART_SWITCH_TIME; + /* store the partition info of emmc */ mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT]; if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) || @@ -2395,7 +2579,7 @@ static int mmc_startup(struct mmc *mmc) #if CONFIG_IS_ENABLED(MMC_TINY) mmc_set_clock(mmc, mmc->legacy_speed, false); - mmc_select_mode(mmc, IS_SD(mmc) ? SD_LEGACY : MMC_LEGACY); + mmc_select_mode(mmc, MMC_LEGACY); mmc_set_bus_width(mmc, 1); #else if (IS_SD(mmc)) { @@ -2407,7 +2591,7 @@ static int mmc_startup(struct mmc *mmc) err = mmc_get_capabilities(mmc); if (err) return err; - mmc_select_mode_and_width(mmc, mmc->card_caps); + err = mmc_select_mode_and_width(mmc, mmc->card_caps); } #endif if (err) @@ -2433,7 +2617,7 @@ static int mmc_startup(struct mmc *mmc) bdesc->lba = lldiv(mmc->capacity, mmc->read_bl_len); #if !defined(CONFIG_SPL_BUILD) || \ (defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \ - !defined(CONFIG_USE_TINY_PRINTF)) + !CONFIG_IS_ENABLED(USE_TINY_PRINTF)) sprintf(bdesc->vendor, "Man %06x Snr %04x%04x", mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), (mmc->cid[3] >> 16) & 0xffff); @@ -2571,6 +2755,11 @@ static int mmc_power_cycle(struct mmc *mmc) ret = mmc_power_off(mmc); if (ret) return ret; + + ret = mmc_host_power_cycle(mmc); + if (ret) + return ret; + /* * SD spec recommends at least 1ms of delay. Let's wait for 2ms * to be on the safer side. @@ -2596,7 +2785,8 @@ int mmc_get_op_cond(struct mmc *mmc) #ifdef CONFIG_MMC_QUIRKS mmc->quirks = MMC_QUIRK_RETRY_SET_BLOCKLEN | - MMC_QUIRK_RETRY_SEND_CID; + MMC_QUIRK_RETRY_SEND_CID | + MMC_QUIRK_RETRY_APP_CMD; #endif err = mmc_power_cycle(mmc); @@ -2626,7 +2816,6 @@ int mmc_get_op_cond(struct mmc *mmc) retry: mmc_set_initial_state(mmc); - mmc_send_init_stream(mmc); /* Reset the Card */ err = mmc_go_idle(mmc); @@ -2672,16 +2861,18 @@ int mmc_start_init(struct mmc *mmc) * all hosts are capable of 1 bit bus-width and able to use the legacy * timings. */ - mmc->host_caps = mmc->cfg->host_caps | MMC_CAP(SD_LEGACY) | + mmc->host_caps = mmc->cfg->host_caps | MMC_CAP(MMC_LEGACY) | MMC_CAP(MMC_LEGACY) | MMC_MODE_1BIT; - +#if CONFIG_IS_ENABLED(DM_MMC) + mmc_deferred_probe(mmc); +#endif #if !defined(CONFIG_MMC_BROKEN_CD) - /* we pretend there's no card when init is NULL */ no_card = mmc_getcd(mmc) == 0; #else no_card = 0; #endif #if !CONFIG_IS_ENABLED(DM_MMC) + /* we pretend there's no card when init is NULL */ no_card = no_card || (mmc->cfg->ops->init == NULL); #endif if (no_card) { @@ -2742,6 +2933,32 @@ int mmc_init(struct mmc *mmc) return err; } +#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \ + CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) +int mmc_deinit(struct mmc *mmc) +{ + u32 caps_filtered; + + if (!mmc->has_init) + return 0; + + if (IS_SD(mmc)) { + caps_filtered = mmc->card_caps & + ~(MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | + MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_DDR50) | + MMC_CAP(UHS_SDR104)); + + return sd_select_mode_and_width(mmc, caps_filtered); + } else { + caps_filtered = mmc->card_caps & + ~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_HS_400)); + + return mmc_select_mode_and_width(mmc, caps_filtered); + } +} +#endif + int mmc_set_dsr(struct mmc *mmc, u16 val) { mmc->dsr = val; @@ -2829,6 +3046,30 @@ int mmc_initialize(bd_t *bis) return 0; } +#if CONFIG_IS_ENABLED(DM_MMC) +int mmc_init_device(int num) +{ + struct udevice *dev; + struct mmc *m; + int ret; + + ret = uclass_get_device(UCLASS_MMC, num, &dev); + if (ret) + return ret; + + m = mmc_get_mmc_dev(dev); + if (!m) + return 0; +#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT + mmc_set_preinit(m, 1); +#endif + if (m->preinit) + mmc_start_init(m); + + return 0; +} +#endif + #ifdef CONFIG_CMD_BKOPS_ENABLE int mmc_set_bkops_enable(struct mmc *mmc) {